#ifndef IO_H_
#define IO_H_

/** outb
 * 将数据发送给指定的IO端口, 在io.s中定义
 * 
*/
void outb(unsigned short port, unsigned char data);

// 从IO端口中读取一个字节
unsigned char inb(unsigned short port);

void fb_move_cursor(unsigned short pos);

void serial_configure_baud_rate(unsigned short com, unsigned short divisor);

#endif